
HALE—AUSTRALIAN CUMACEA 437 
Posterior peraeopods long and slender; basis in third longer than rest of 
limb, in fourth about equal to it, in fifth about two-thirds as long; merus of third 
and fourth pairs shorter than carpus and propodus together; carpus with two 
distal setae, unequal in length, the longer, and most distal, like propodal seta, 
reaching to apex of the long and slender dactylus. 

. Fig. 56. Allodiastylis tenuipes, paratype ovigerous females; c. pace, anterior part of 
carapace (% 50); ant., first and second antennae; mxp, and prp,, third maxilliped and first 
to third peraeopods; urop., uropod with fifth and sixth pleon somites, and telson; tels., sixth 
pleon somite and telson from the side (all & 75), 
Pedunele of uropod rather narrow, more than one-third as long again as 
_ telson and equal in length to the exopod, which is more than one-fourth as long 
again as endopod; the latter has its first segment barely three-fourths as long as 
second, which has four inner setae and a slender flexible terminal spine equal 
in length to itself; exopod with four outer spines on second joint plus three 
unequal terminal spines, the longest of which is as long as the segment. 
Length 2-46 mm. 
Lec. New South Wales: Ulladulla, Brush Island, 45 fath., in fine silt on 
flathead grounds (D. Rochford, Jan., 1945). Type in South Australian Museum, 
Reg. No, C. 2702. 
The respiratory siphons are large. In one example with the first peraeopods 
asymmetrical the shorter of the pair has the inner margin of basis, ischium and 
merus spinose. 
